timing clock

MIOS programming (Assembler)
1

HI,could anyone tell me how many timing clocks signals is sending the master sequencer, in order to increment one in the song position pointer (statusF2; MSB0-7f;LSB 0-7f)???

I´m doing it at 24 ticks =1lsb; and 128lsb=1msb,

but I don´t know if I must do it at 16ticks=1lsb; and 128lsb=1msb .

The SMPTE uses different modes like  24:128:128 ; 25:128:128 and some more, but How many modes does the MTC use?

Thanks alot

2

MIDI clock and SMPTE/MTC are two different things.

There is no direct relation, as MIDI clock works step based, whereas SMPTE works timeframe based.

See also http://www.borg.com/~jglatt/tech/midispec/seq.htm and http://www.borg.com/~jglatt/tech/mtc.htm

Best Regards, Thorsten.

3

I think I´ve read Each MIDI Beat spans 6 MIDI Clocks, so there are 24 MIDI Clocks in a quarter note instead of 24 or 16 for each Midi beat ::slight_smile:

It would be 6timing clock= 1lsb and 128lsb=1msb

type    |  bin        |

estatus |1111 0010  | SPP signal position pointer

data    |0-01111111|  MSB

data   |0-01111111|  LSB

thanks